ACOUSTOOPTICAL RECEIVER Russian patent published in 2008 - IPC H04B10/06 

FIELD: physics.

SUBSTANCE: proposed receiver relates to the radioelectronic and may be used for the reception, bearing finding, spectral analysis, and detection of complex phase shift keying (PSK). The acoustic receiver contains the first (1) and second (2) antennas, frequency converter (3), the first (4) and second (5) heterodynes, the first (6) and second (7) mixers, the first (8) and second (9) intermediate frequency amplifiers, the first (10), second (12), third (25), fourth (26), fifth (34), and sixth (35) multipliers, the first (11), second (13), third (27), and fourth (36) narrowband filters, a correlator (14), the threshold unit (15), the first (16) and second (19) switches, a phase detector (17), the first (18) and second (29) recording units, a laser (20), a collimator (21), the first (22), second (30), and third (31) Bragg cells, the first (23) and second (32) lenses, the first (24) and second (33) photodetector matrices, the first (28) and second (37) low frequency filters, the first (38) and second (39) phase inverters, and a subtractor (40).

EFFECT: increased noise immunity of phase-shift-keyed signal reception due to attenuation of narrowband interference.

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